Re: 2014 regular CTS to have 420 HP !!!!

Wow... crank up the boost for 500+ should be easy. I hope a tuner is ready to pounce on this. $ in the bank. Coming from Audis with 4 cyl turbo and V6 twin turbos... the market is endless for software, exhausts, bigger turbos, manifolds, FMICs, etc.

Re: 2014 regular CTS to have 420 HP !!!!

Am not familiar with modding a turbo other than up pipe and down pipe stuff plus the obvious, larger turbo.

How much can just software do? Can that alone raise the maximum boost (by controlling the wastegate valve or something?)? Or, would getting something approaching 500 hp require a different turbo and lots of pipe work?

Re: 2014 regular CTS to have 420 HP !!!!

Originally Posted by rand49er

Am not familiar with modding a turbo other than up pipe and down pipe stuff plus the obvious, larger turbo.

How much can just software do? Can that alone raise the maximum boost (by controlling the wastegate valve or something?)? Or, would getting something approaching 500 hp require a different turbo and lots of pipe work?

My '01 Audi A4 1.8 Turbo was 170 hp (factory at 10psi boost), which was the same 1.8T motor in general that is 150 hp at 7 psi boost... with a chip, it was 210 hp. 40/170 is ~25% increase for $500. S4 is a 250 hp twin turbo V6 at 250 going to 310-320 hp range... again, ~25% gain.

My A4 1.8T with a GT28R turbo on race gas was 250-260+ all wheel drive to the wheels making 330+ crank. Almost double than stock at 170 and more than double if you count '97-'00 @ 7psi before '01 model. Never built the motor and tons of miles on it with lots of track days. I hope GM builds them as strong. And a tuner jumps on this.

Re: 2014 regular CTS to have 420 HP !!!!

Originally Posted by rand49er

Am not familiar with modding a turbo other than up pipe and down pipe stuff plus the obvious, larger turbo.

How much can just software do? Can that alone raise the maximum boost (by controlling the wastegate valve or something?)? Or, would getting something approaching 500 hp require a different turbo and lots of pipe work?

The GMPP tune from the dealer for the Sky RL bumps it from 260/260 to 290/340. I'm ordering a popular tune for mine that bumps it up to around 320/380, with no other mods.